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netineya [11]
3 years ago
8

3 fewer than a number squared and four

Mathematics
2 answers:
grigory [225]3 years ago
5 0

Answer:

(n^{2}+4)-3

Step-by-step explanation:

since it says "and four" i think it means it is in parenthesis

sergij07 [2.7K]3 years ago
4 0

Answer:

n^2 + 1

Step-by-step explanation:

Let the unknown number be n.  Then "a number squared and four" is

n^2 + 4, and 3 fewer than this result is

n^2 + 3 - 3, or n^2 + 1

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For the right triangles below, find the exact values of the side lengths b and d.
Ivanshal [37]

Answer:

Step-by-step explanation:

The question lacks the required diagram. Find the diagram attached below;

According to the first triangle, taking 30° as the reference angle, the opposite side of the triangle will be 5 and the adjacent will be the unknown side "b"

According to SOH, CAH, TOA;

tanθ = opposite/adjacent (using TOA)

Given;

θ = 30°, opposite = 5 and adjacent = b

tan30° = 5/b

b = 5/tan30°

b = 5/(1/√3)

b = 5*√3/1

b = 5√3

According to the 45° triangle, the opposite side of the triangle will be d and the hypotenuse will be 7

Using SOH;

sinθ = opposite/hypotenuse

Given;

θ = 45°, opposite = d and adjacent = 7

sin45° = d/7

d = 7sin45°

d = 7(1/√2)

d = 7/√2

Rationalize 7/√2

= 7/√2*√2/√2

=7√2/2

Hence the value of d is 7√2/2

7 0
3 years ago
While Patrick was visiting his sister in Summerfield, he bought a silver ring that was marked down 50% from an original price of
Bezzdna [24]
21.47 I think???? Not sure
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A donut shop requires customers to spend at least $4 in order to use their debit card to pay for a purchase. Maya wants to buy a
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4 0
2 years ago
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murzikaleks [220]

Answer:

3^2, 9 students.

Step-by-step explanation:

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A triangular prism has a volume of 832m3. The area of the base is 64m2. What is the height of the prism?
dolphi86 [110]

Answer:

13 m

Step-by-step explanation:

volume=1/2(b×h)×length/height

height =volume÷base area(1/2b×h)

832÷64=13m

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3 years ago
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